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ETHERMODEM/SEM28 (ETHERNET + 28.8KBPS MODEM)

SILICOM CONNECTIVITY SOLUTIONS, INC.

ETHERMODEM/SEM28 (ETHERNET + 28.8KBPS MODEM)

Card Type

Fax, Modem (synchronous/asynchronous), Network Interface Card

Chip Set

Unidentified

I/O Options

Ethernet 10Base2 connector, Ethernet 10BaseT connector

NIC Type

Ethernet

Network Transfer Rate

10Mbps

Maximum Modem Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA Type II

Fax Class

Class I & II

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34

Rockwell V.FC

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, MNP10, V.42, V.42bis

Topology

Linear Bus, Star

Wiring Type

Unshielded twisted pair

RG-58A/U 50ohm coaxial

Boot ROM

Not available

CONNECTIONS

Function

Label

Function

Label

10BASE-2 - RG-58A/U 50ohm coaxial

CN1

10BASE-T - Unshielded twisted pair

CN2

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED 1

Yellow

On

Link integrity good on 10BASE-T connection

LED 1

Yellow

Off

Link integrity broken on 10BASE-T connection

LED 2

Green

Blinking

Sending or receiving data

LED 2

Green

Off

Not sending or receiving data

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘Comma’, A/

A, B, C, E, H, L, M, N, O, P, Q, S, T, V, W, X, Y, Z

&C, &D, &F, &G, &J, &K, &L, &M, &P, &Q, &R, &S, &T

&V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \G, \K, \L, \N, %C, %E, %l, %Q, %TT

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S25, S26, S29, S30

S32, S33, S37, S38, S39, S46, S48, S82, S86, S91, S92, S95, S99, S201

Special Commands

)M, *H, -K, -Q, @M, :E, #CID

Note: See MHI Help file for full command documentation.

Proprietary AT Command Set

BIT MAPPED REGISTERS

Register

Default

S14

Unidentified

S21

Unidentified

S22

Unidentified

S23

Unidentified

S27

Unidentified

S28

Unidentified

S31

Unidentified

S40

Unidentified

S41

Unidentified

MODULATION SELECTION

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Controls which modulation the modem uses to connect with

Command

Function

F0

Auto-detect mode, same as ATN1

F1

Selects V.21 or Bell 103

F3

Selects V.23 line modulation

F4

Selects V.22 or Bell 212A 1200bps line speed

F5

Selects V.22bis line modulation

F6

Selects V.32bis or V.32 4800 line modulation

F7

Selects V.32bis 7200 line modulation

F8

SelectsV.32bis or V.32 9600 line modulation

F9

Selects V.32bis 12000 line modulation

F10

Selects V.32bis 14400 line modulation

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product code

I1

Reports ROM checksum

I2

Tests and reports ROM checksum

I3

Reports firmware revision, model and interface type

I4

Reports response programmed by OEM

I5

Report country code

I6

Reports modem data pump model

PROPRIETARY S-REGISTERS

Register

Function

Default

S202

Remote access escape character

Unidentified